How to designate - is it not enougth of hardware or the software works incorrectly?

Hello!
We work with MS SQL Server 2000.
And it works not so fast as it desired.
The question is :
How to designate - is it not enougth of hardware or the software works
incorrectly?
One more phrase - the software not MS SQL Server but the software is the
system of our vendor built on MS SQL Server
I know the perfromance analazing methods and so on but if them are higher
then are should to be it's hard to find out does software work not good or
it's not enough hardware?Zenya
What do you mean by"And it works not so fast as it desired.?"
Do queries run slow ?
"Eugene Doronin" <doronin@.bigmir.net> wrote in message
news:uycP8DzjEHA.2544@.TK2MSFTNGP10.phx.gbl...
> Hello!
> We work with MS SQL Server 2000.
> And it works not so fast as it desired.
> The question is :
> How to designate - is it not enougth of hardware or the software works
> incorrectly?
> One more phrase - the software not MS SQL Server but the software is the
> system of our vendor built on MS SQL Server
>
> I know the perfromance analazing methods and so on but if them are higher
> then are should to be it's hard to find out does software work not good or
> it's not enough hardware?
>
>
>|||Not the queries work slowly but the vendor software work very slowly!